Fenwal 35‑655605‑003 Hot Surface Ignition Module

Description

The Fenwal 35‑655605‑003 Hot Surface Ignition Control Module is a durable OEM‑grade ignition control board engineered for reliable performance in gas‑fired HVAC and heating applications such as furnaces, boilers, water heaters, and other combustion equipment. This 24 VAC hot surface ignition (HSI) control board manages critical functions including ignition sequencing, flame sensing, and safety monitoring to help ensure consistent combustion and system safety.

Key Features

• OEM‑grade hot surface ignition control designed to meet rigorous HVAC performance demands.
• Operates on 24 VAC with dependable ignition sequencing and flame detection.
• Three ignition tries with 7‑second TFI for reliable start‑ups.
• No pre‑purge and no inter‑purge for direct ignition control strategy.
• Microprocessor‑based control logic with diagnostic indicators to support service and troubleshooting.
• Compatible as a direct replacement for worn or failed ignition control modules in gas‑burner systems.